Edit: On testing, only occurs in editor.

The mod Repair Turret (2.0.4) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event Repair_Turret::on_tick (ID 0)
Repair_Turret/script/repair_turret.lua:295: assertion failed!
stack traceback:
[C]: in function 'assert'
Repair_Turret/script/repair_turret.lua:295: in function 'is_valid_for_entity'
Repair_Turret/script/repair_turret.lua:448: in function 'find_nearby_turrets'
Repair_Turret/script/repair_turret.lua:934: in function 'check_repair'
Repair_Turret/script/repair_turret.lua:950: in function 'check_repair_check_queue'
Repair_Turret/script/repair_turret.lua:1047: in function 'handler'
core/lualib/event_handler.lua:72: in function <core/lualib/event_handler.lua:70>